this.creditsGranted = 0;
    }

    /**
     * Get initial number of credits to request
     *
     * @return initial credits
     */
    public int getInitialCredits() {
        return initialCredits;
    }

    /**
     * Set initial credits
     *
     * @param initialCredits initial credits to request
     */
    public void setInitialCredits(int initialCredits) {

public interface Request extends Message {

    /**
     * Gets the number of credits this request requires.
     *
     * @return number of credits this request requires
     */
    int getCreditCost();

    /**
     * Sets the number of request credits.
     *
     * @param credits the number of credits to set
     */
    void setRequestCredits(int credits);

    /**
     * Checks if this is a cancel request.
     *

        this.maxVersion = maxVersion;
    }

    /**
     * Get number of credits requested
     *
     * @return credits requested
     */
    public int getCreditsRequested() {
        return creditsRequested;
    }

    /**
     * Set number of credits requested
     *
     * @param creditsRequested credits to request
     */
    public void setCreditsRequested(int creditsRequested) {

        this.selectedVersion = selectedVersion;
    }

    /**
     * Get number of credits granted
     *
     * @return credits granted
     */
    public int getCreditsGranted() {
        return creditsGranted;
    }

    /**
     * Set number of credits granted
     *
     * @param creditsGranted credits granted
     */
    public void setCreditsGranted(int creditsGranted) {

    }

    /**
     * Get number of available send credits
     *
     * @return available send credits
     */
    public int getAvailableSendCredits() {
        return sendCredits.get();
    }

    /**
     * Get number of available receive credits
     *
     * @return available receive credits
     */
    public int getAvailableReceiveCredits() {

    }

    /**
     * Get the number of send credits granted
     *
     * @return credits granted
     */
    public int getCreditsGranted() {
        return creditsGranted;
    }

    /**
     * Set the number of send credits granted
     *
     * @param creditsGranted credits to grant
     */
    public void setCreditsGranted(int creditsGranted) {

    }

    @Test
    void testSetRequestCredits() {
        // Test case for setRequestCredits method
        int credits = 5;
        mockRequest.setRequestCredits(credits);

        // Verify that setRequestCredits was called with the correct argument
        verify(mockRequest, times(1)).setRequestCredits(credits);
    }

    @Test
    void testIsCancelTrue() {
        // Test case for isCancel method when it returns true

    }

    /**
     * Get the number of send credits requested
     *
     * @return credits requested
     */
    public int getCreditsRequested() {
        return creditsRequested;
    }

    /**
     * Set the number of send credits requested
     *
     * @param creditsRequested credits to request
     */
    public void setCreditsRequested(int creditsRequested) {

    @DisplayName("Credit Tests")
    class CreditTests {

        @Test
        @DisplayName("Should return credit as granted credits")
        void testGetGrantedCredits() {
            int credits = 10;
            response.setCreditForTest(credits);

            assertEquals(credits, response.getGrantedCredits());
        }
    }

    @Nested
    @DisplayName("Payload Handling Tests")

    }

    @Test
    @DisplayName("Test initial credits edge cases")
    void testInitialCreditsEdgeCases() {
        // Test zero credits
        when(negotiationResponse.getInitialCredits()).thenReturn(0);
        assertEquals(0, negotiationResponse.getInitialCredits());

        // Test negative credits (edge case)
        when(negotiationResponse.getInitialCredits()).thenReturn(-1);